package com.guli.product.exception;

import com.guli.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

@RestControllerAdvice
@Slf4j
public class GuliMallProductException {
    /**
     * 数据校验捕获异常处理器
     * @param e
     * @return
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handValidationException(MethodArgumentNotValidException e) {
        log.error("数据校验出现问题: {}，异常类型: {}", e.getMessage(), e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        Map<String, String> errorMap = new HashMap<>();
        for (FieldError error : bindingResult.getFieldErrors()) {
            String field = error.getField();
            String defaultMessage = error.getDefaultMessage();
            errorMap.put(field, defaultMessage);
        }
        return R.error(400, "数据校验出现问题").put("data", errorMap);
    }

}
